Hirose, Eiichi and Kawabe, Keita and Sigg, Daniel and Adhikari, Rana and Saulson, Peter R. (2010) Angular instability due to radiation pressure in the LIGO gravitational-wave detector. Applied Optics, 49 (18). pp. 3474-3484. ISSN 0003-6935 http://resolver.caltech.edu/CaltechAUTHORS:20100712-143400608
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We observed the effect of radiation pressure on the angular sensing and control system of the Laser Interferometer Gravitational-Wave Observatory (LIGO) interferometer’s core optics at LIGO Hanford Observatory. This is the first measurement of this effect in a complete gravitational-wave interferometer. Only one of the two angular modes survives with feedback control, because the other mode is suppressed when the control gain is sufficiently large. We developed a mathematical model to understand the physics of the system. This model matches well with the dynamics that we observe.
|Additional Information:||© 2010 Optical Society of America. Received 3 September 2009; revised 10 December 2009; accepted 10 May 2010; posted 11 May 2010 (Doc. ID 116355); published 11 June 2010. We are grateful to SamWaldman for useful discussions. This research was supported in part by the National Science Foundation (NSF) under grant PHY-0600259. LIGO was constructed by the California Institute of Technology and the Massachusetts Institute of Technology with funding from the NSF and operates under cooperative agreement PHY- 0107417. This article has LIGO document number LIGO-P0900086.|
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|Classification Code:||OCIS codes: 000.2780, 120.3180, 120.2230, 220.1140|
|Official Citation:||Eiichi Hirose, Keita Kawabe, Daniel Sigg, Rana Adhikari, and Peter R. Saulson, "Angular instability due to radiation pressure in the LIGO gravitational-wave detector," Appl. Opt. 49, 3474-3484 (2010) http://www.opticsinfobase.org/abstract.cfm?URI=ao-49-18-3474|
|Usage Policy:||No commercial reproduction, distribution, display or performance rights in this work are provided.|
|Deposited By:||Tony Diaz|
|Deposited On:||04 Aug 2010 17:31|
|Last Modified:||26 Dec 2012 12:13|
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